Vacuum-cleaner handle.



No. 878,300 I PATENTED DEC. 10, 1907. A. P. GRANSTON. VACUUM CLEANERHANDLE.

APPLICATION FILED MAY 7.1907.

ATTORNEKS UN ITED STATES PATENT OFFICE.

ALFRED P. GBANSTON, OF NEW YORK, N. Y.

. VACUUM-CLEANER HANDLE.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed May 7 1907- Serial No. 372.347.

The improvements of the present invention are particularly adapted foruse in connection with that type of vacuum cleaning apparatus, whichcomprises a pump or suction device, having dust collecting meansconnected by a flexible hose with a portable handle or a sucker, whichis moved over the floor or other surfaces to be cleaned.

Vacuum cleaner handles of the type indicated are usually formed of alight metal pipe having a mouth or suction slot at their lower end andhaving their upper end curved or bent to receive a flexible hose, whichis connected with the pump. It is found in practice, that the upwardlymoving stream of dust or grit laden air impinges against the metal pipe,at the curved upper end thereof, and soon wears a hole in the same,thereby destroying the usefulness of the handle and requiring a newhandle. Furthermore, it is found in ractice, that where a metal handleor i e o the ty e indicated is em lo *ed, it is difficult to kno v justwhen the sur fade over which the device is pletely cleaned.

With the above premises in view, the objeot of the present invention isto improve the construction of vacuum cleanerhandles, principally insuch a manner as to increase the period of their usefulness, by overcommg or avoiding the effects of wear, and also to enable the operatorusing the vacuum cleaner to ins ect the dust laden air passing throughthe andle, so that he can determine when a surface has been properlycleaned. i

' With the foregoing and other objects in view, which will appear as thedescription proceeds, the inventionresides in the construction,combination and arrangement of parts and in the details hereinafterdescribed and claimed, changes in the tion herein disc moved has beencomrecise embodiment of invenosed can be made within the and usefulImprovements in- .same.

lower metallic section 2,

it being understood that scope of the following claims without departinfrom the spirit of the invention.

n the accompanying drawing forming part of this specification, Figure1,.is a longitudinal section, partly in elevation, through a vacuumcleaner handle constructed in accordance with the invention. Fig. 2, isa detail sectional view, showin a modification. Fig. 3, is a sectionalview of another modification. Fig. 4, is a plan view of the constructionshown in Fig. 3.

Referring to Fig. 1, the reference letter A indicates in a generalmanner the curved upper end of a vacuum cleaner handle, and

indicates a flexible pipe or hose, which is suitably connected with theupper end of handle A for conveying the dust laden air to a suitabledust collecting or settling device.

It is found in practice, that the dust or grit carried by the upwardlymoving stream of air impinges against the curved upper end of the handleA, so as to wear through the For the purpose of materially overcomingthis tendency to wear, the curved upper portion 1 of the handle Aaccording to my invention is reinforced in any suitable manner, such asby thickening the same, as illustrated in Fig. 1, whereby the life ofthe handle is prolonged.

In the embodiment of the invention illustrated in Fig. 1, the handle Ais formed of a and an upper section 3, which is deta'chably connectedwith the lower section 2 in any suitable manner, such as by' means ofscrew threads as indicated at 4. The upper section 3 is curved as shownin Fig. 3 and is reinforced at 1 as previously described. Furthermore,the upper section 3 preferably is formed of hard transparent material,such for example as glass, the vitreous character of which enables it towithstand the wear of the dust laden air to a great extent. By reason ofits transparent character, the operator can watch the column of dustladen air through the section 3, and can thus determine by the absenceof dust, when a surface has been properly cleaned. If the section 3should become Worn through long detached from the lower metallic section2, and a new section 3 substituted at small expense. In the constructionshown in Fig. 1, the section 3, at its upper end is pro ided with screwthreads 5 by means of which it service, it can be readily can be screwedinto the end of'the flexible hose B.

In the modified construction. illustrated in Fig. 2, the glass section 3is formed with a conical or tapered upper end 7, which is provided withcorrugations, and is adapted to be thrust into the end of the hose B, asshown, so as to form a tight joint.

In the modified construction illustrated in Figs. 3 and 4, the curvedupper end 8 of the handle is constructed of metal and is formed at thecurved portion thereof with a rabbeted opening into which is'fitted aglass plate or window 9, which is thickened as shown, and is removablyheld in place in any suitable manner, such as by means of the catches10, which are adapted to be rotated upon suitable pivoted pins or screws11, whereby a new plate 9 can be inserted whenever the old one becomesworn. As the plate 9 preferably is formed of glass or other transparentmaterial, it provides a sighting device to inspect the dust laden air,and also presents a hard surface to receive the wear of the dust orgrit.

The improved handle of the present invention is strong, simple, durableand inexpensive in construction,'as well as thoroughly efficient in use.

What'is claimed is:

1. A vacuum cleaner handle reinforced at the portions of greatest wear.

2. A vacuum cleaner handle having its curved portions reinforced.

3. A vacuum cleaner handle having a detachable sighting device.

4. A vacuum cleaner handle having a curved detachable sighting device.5. A vacuum cleaner handle having a reinforced transparent portion.

6. A vacuum cleaner handle having a detachable curved reinforcedportion.

7. A vacuum cleaner handle comprising a metallic portion and curvedtransparent portion.

8. A vacuum cleaner handle having a metallic portion and a detachablecurved transparent thickened portion, substantially as set'forth.

In testimony whereof, I have hereunto set r my hand in the presence oftwo subscribing witnesses.

ALFRED P. CRANSTON.

Witnesses:

0. L. MATTHEWS, V W. H. CRICH'ION-CLARKE.

